Aggregate Conveyors for Sand and Gravel. 814 701 2111 [email protected] . Iron City Supply - Aggregate Conveyors. Radial Stacker; Transfer Conveyors; Shaker Screens ... Truss or Channel Frame Conveyors, Any Size, Any Length - Call for a free quote today! 8 x 16 Bin Belt Feeders, 24in - $30,100.00, 30in - $ 31,550.00 and 36in - $33,500.00.